/**
 * Copyright 2010 Creative Works, Inc.
 * Creative Works licenses this file to you under the Apache License, version
 * 2.0 (the "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *    http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.  See the License for the specific language governing
 * permissions and limitations under the License.
 */
package org.sendvox.freswitch.inbound.impl;

import java.util.concurrent.BlockingQueue;

import org.jboss.netty.channel.ChannelPipeline;
import org.jboss.netty.channel.ChannelPipelineFactory;
import org.jboss.netty.channel.Channels;
import org.jboss.netty.channel.group.ChannelGroup;
import org.jboss.netty.handler.codec.string.StringEncoder;
import org.jboss.netty.handler.execution.ExecutionHandler;
import org.jboss.netty.handler.execution.OrderedMemoryAwareThreadPoolExecutor;
import org.sendvox.freswitch.core.impl.EventSocketLibDecoder;

public class InboundPipelineFactory implements ChannelPipelineFactory {

	private ChannelGroup channelGroup = null;

	private OrderedMemoryAwareThreadPoolExecutor pipelineExecutor = null;

	private BlockingQueue<Integer> answer = null;

	private int max = 100; // default is 100 max connections

	/**
	 * Constructor
	 * 
	 * @param channelGroup
	 * @param pipelineExecutor
	 * @param answer
	 * @param max
	 *            max connection
	 */
	public InboundPipelineFactory(ChannelGroup channelGroup,
			OrderedMemoryAwareThreadPoolExecutor pipelineExecutor,
			BlockingQueue<Integer> answer, int max) {
		super();
		this.channelGroup = channelGroup;
		this.pipelineExecutor = pipelineExecutor;
		this.answer = answer;
		this.max = max;
	}

	@Override
	public ChannelPipeline getPipeline() throws Exception {
		if (max == 0) {
			// stop globally
			answer.add(new Integer(0));
			throw new Exception("End of server");
		}
		ChannelPipeline pipeline = Channels.pipeline();
		pipeline.addLast("decoder", new EventSocketLibDecoder(8192));
		pipeline.addLast("encoder", new StringEncoder());
		pipeline.addLast("authenticator", new AuthenticationChannelHandler());
		pipeline.addLast("pipelineExecutor", new ExecutionHandler(
				pipelineExecutor));
		pipeline.addLast("handler", new InboundChannelHandler());
		max--;
		return pipeline;
	}

	public ChannelGroup getChannelGroup() {
		return channelGroup;
	}

}
